Harrow.



No. 647,345. Patented Apr. I0, |900. C. WEHRENB'EBG.'

HARRUW.

(Application med Aug. a, 1399;) (No Model.) 2 Sheets-Sheet I.

TTOHNE YS .mrnnms Perma co. wofaumu, WASHINGTON n. c

FNITED STATES PATENT OFFICE.

CHARLES WEI-IRENBERG, MOUND CITY, ILLINOIS.

.. HARROW.

SPECIFICATION forming part of Letters latent N o. 647,345, dated April10, 1900.

Application filed August 2, 1899. Serial No. 725,870. (No model.) v

T0 all whom t may concern.:` i

Be it known that I, CHARLES WEHRENBERG, of Mound City, in the county ofPulaski and State of Illinois, have invented a new and usefulImprovementin Harrows, of which the following is a full, clear, andexact description.

My invention relates to an improvement in harrows, and especially to animprovement upon the construction shown in Letters Patent No. 520, 278,which were granted to me May 22, 1894.

The object of the invention is to provide a roller-barrow the rollerswhereof can be adj usted so that sufficient space may be obtainedbetween them to accommodate a row of corn or whereby two rollers may bebrought so close together that they will act as a single long one.

Another object of the invention is to provide a means whereby the teethof the rollers or drums will come so near the corn that they leave itperfectly clean and the ground in excellent shape.

Another object of the invention is to provide cleaners for theharrow-teeth that may be adjusted correspondingly tothe rollers or drumsand also to provide supporting-wheels which may be quickly brought intoengagement with the ground and act through the medium of attached leversto raise the rollers or drums up from the ground; but the harrow may bebuilt with or without said supporting-wheels at option of purchaser.

The invention consists in the novel construction and combination of theseveral parts, as Will be hereinafter fully set forth, and pointed outin the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation of theimproved harrow, showing the drumsin4 two positions. Fig. 2 is a plan view of the improved harrow. Fig. 3isa transverse section taken practically on the line 3 3 of Fig. 1. Fig.4 is a side elevation of-a modified form of the harrow. Fig. 5 is adetail perspective view of a divisionbeam` used in `connection with theconstruction shown in Figs. 1, 2, and 3. Fig. G is a plan view of anaxle used in connection with the division-bar shown in Fig. 5, and Fig.7 is an end View of said axle.

The frame of the machine is usually rectangular, comprising side beams10, front and rear beams -1l, and intermediate beams 12 and 13, locatedone near the front and the other near the rear of the machine. A division-bar 14, preferably of metal, extends from the central portion ofthe front intermediate bar 12 to a corresponding portion of the rearintermediate bar 13, as shown in Fig. 2, and this division-bar at thecentralportion of each of its sides is provided with a socket 15, asshown in Figs. 3 and 5. A platform 1G is constructed at the rear of theframe, and a seat 17 for the driver is supported by said platform. Thisplatform may be excluded, and an iron seat fastened to the frame by aidof a spring may be substituted.

When two drums or rollers B are employed, placed end to end, one of thesaid drums or rollers is located ateach side of the division bar 14, anda separate axle 18 and 19 is provided for each drum. As shown in Fig. 6,

each axle consists of a polygonalbody a,

short trunnion a at one end that is adapted to enter a socket 15 in thedivision-bar 14,

and a long trunnion a2 at the opposite end, which trunnions a2 arejournaled in suitable boxes 20, attached to the sides of the frame, asillustrated in Fig. 3. Each drum or roller B consists of two hubs 2l,said hubs being fitted upon the body portion a of an axle and adjustably held thereon by set-screws 22. Spokes 23 extend from the hubsoutward to an engagement with bands or rings 24, and the said spokes aredished inwardly, so that the two drums or rollers B may be brought quiteclose together irrespective of the sockets 15 on the division-bar 14. Inthe further construction of the drum plates or boards 25 extend atdesired intervals apart from one ring or band 24 to the other or can beone solid iron drum with teeth fastened in it, and these plates orboards 25 carry longitudinallyarranged teeth 26, which teeth may be ofany desired character. A hood 27 extends over the rear portions of thedrums in order to protect the driver, as shown in Figs. 1 and 2.

IOO

In connection with each drum B a cleaning device C is employed. Eachcleaning device consists of a series of teeth 23, attached to a head-bar29, and metal loops 30, polygonal in cross-section, which loops extendupwardly and rearwardly from the head-bar 29, and the loops of eachhead-bar are mounted to slide upon a cross-bar 3l, which is attached tothe lower ends ofhangers 32, that extend downward from the rear portionsof the side beams 10 of the main frame. The teeth 2S are given adownward and forward inclination and are so placed that the teeth of thedrums will pass between the teeth 2S as said drums revolve. Pins 3Qa ortheir equivalents are placed in the supporting-bar 2l adjacent to theouter edges of the outer loops of the cleaning devices to prevent thesaid devices moving from their adjusted position, since these devicesare to be adjusted correspondingly to the adjustment of the drums B.

lVhen the ground to be harrowed is Where corn has been planted, thedrums are moved far enough apart to permit the standing corn to enter aspace between them, and thus escape injury; but when the ground is to besimply harrowed and no plants are in the ground the two drums arebrought as close together as possible. The frame is provided with anyapproved form of tongue 33.

An elevating device D is employed at each side of the frame. Thiselevating device is likewise adapted as a wheeled support for the harrowwhen being taken to and from the field. Each elevating device consistsof a lever 34, fulcrumed upon a trunnion a2 of each axle 18 and 19, andthe said lever is provided With a fork 35 at its lower end, in which aground-wheel 36 is suitably mounted. Each lever. is likewise providedwith a link 37, pivotally attached to its inner face, and these linksextend rearward and terminate in hooks 38 at their rear ends, whichhooks are adapted to enter any one of a series of apertures 39, made inthe side beams of the said main frame; but, as stated, the harrow may bebuilt with or without the elevating device D at option of purchaser.

In operation when it is desired to raise the drums from the ground thehooks of the links 37 are disengaged from the frame, and the levers arethen carried upward until the wheels 36 bear upon the ground, and thelevers are further carried upward until they assume a perpendicularposition or a position between the horizontal and perpendicular, and thelinks 37 serve, when placed in the apertures 39, to hold the levers intheir upper position. Thus it will be observed that the entire frame anddrums carried thereby will be raised, as shown in dotted lines in Fig.l, and the wheels 36 will serve as supports for the entire structure.

In Fig. 4 I have illustrated a slight moditication in the constructionof the machine,

the difference being that the drums instead of being placed end to endare located one behind the other. This form of the harrovv isparticularly desirable for use in a field that is to be harrowed twice,since one drum following the other will accomplish the sameresult whenthe machine has been passed but once over the field. rlhe drums and theelevating devices are the same as has been described in connection withthe form of themachine shown in Fig. 1, except that the levers 34 arepivoted on spuds 34, located at the central portion of the frame. Theaxles 40 of the drums are pivoted in suitable bearings, and the samecleaning devices C are used; but the seat 4l is located on the framebetween the two drums, and a hood 42 is provided for each drum, eachhood extending from the support for the drivers seat.

Having thus described my invention, I claim as new and desire to secureby Letters lPatentl 1. A harrow comprising a frame, adjustable drumsprovided with teeth mounted to revolve in the said frame, the drumsbeing arranged to closely approach each other at their abutting ends andconstitute virtually one continuous drum, and lifting devices locatedone at each side of the frame, each lifting device consisting ofa.lever,a wheel mounted at one end of the lever, and links carried bythe levers and adapted for locking connection with the frame.

2. In a harrow, the combination, with a frame, of adjustable independenttoothed drums mounted to revolve in the frame, the drums being capableot' being brought close together at their abutting ends, and liftingdevices for the frame, located one at each side of the said fra me, eachlifting device consisting of a lever fulcrumed at the central portion ofthe frame, aground-wheel mounted in the lower end of the lever, and alink pivotally connected with the upper portion of the lever, which linkis arranged for adjustable locking connection with the frame at the rearof its center, as specified.

3. In a harrow, the combination, with a frame provided with adivision-bar, and axles j ournaled in the division-bar and in the outerside portions of the frame, of toothed drums adj ustably secured to thesaid axles, and cleaning devices for the teeth or" the said drums, saidcleaning devices having relative adjustment to the adjustment of thesaid drums, and means for locking the drums and cleaning devices intheir adj usted positions, as set forth.

4. In aA harrow, the combination, with a frame, a division-bar securedlongitudinally in the frame, the division-bar being provided withopposing sockets in its side faces, and axles having trunnions at theirends and polygonal bodies, which axles are journaled in the said socketsof the division-bar and in ICO IIO

and cleaning devices in their adjusted positions, as described.

CHARLES VEI-IRENBERG.

Witnesses:

J. G. RHINE, W. A. WALL.

